奔驰12V NOx传感器 A0009055100 5WK96681 扁五针设计 原厂匹配

This Mercedes 12V NOx sensor (OEM A0009055100 / 5WK96681) is designed for 2013–2018 Mercedes-Benz W166, W205, W212, W222 platforms with diesel engines OM642, OM651, OM642 LS, including ML/GLE, C-Class, E-Class, S-Class, with displacements from 2.1L to 3.0L. Main function: real-time monitoring of nitrogen oxides in exhaust and feedback to ECU to optimize SCR system operation, ensuring emissions compliance and preventing engine torque limitation. OEM numbers A0009055100 and 5WK96681 can be cross-checked with stock parts for exact match. This sensor uses a flat five-pin connector; when replacing, disconnect battery negative first, use a specialized socket to remove the old part to avoid damaging exhaust threads, and check wiring connectors for corrosion. For batch buyers, KLP offers performance parameters consistent with original and more competitive pricing, suitable for repair shops or parts wholesalers.